Pipe



Oct. 20, 1931.

H. MALLETT PIPE Filed March 13, 1931 Hugh flallelflla Patented Oct. 20, 1931 UNITED STATES- PATENT orrlcs noon 11mm, or 3mm, rumors PIPE Application fled larch 13,1081. Serial Io. ma

This invention aims to provide a pipe havin novel means'for carrying, removably, a

tu ular bowl insert, made of corn cob or the arrangement of parts and vin-the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention here in disclosed, may be made within the scope of what is claimed, without-departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 shows in longitudinal section, a device constructed in accordance with the in vention, the mouth piece being in elevation;

Figure 2 is a lon 'tudinal section of the bowl and the stem, t e mouth piece and the insert havin been removed;

Figure 3 1s a longitudinal section ofthe insert.

The pipe forming the subject matter of this application may be made of any desired matenal, and may be of any preferred shape,

but, by way of illustration, the pipe has been shown as comprisin a bowl 1 carrying a stem 2, the bowl and t e stem being made of aluminum, if desired. A month piece 3 is manner, with the stem 2.

The bowl 1 is provided with a cylindrical chamber 5, including an inwardly tapered threaded, lower portion 6. Below the tapered portion 6 of the chamber 5, the bowl 1 is equipped with a transverse shoulder 7. The bore 8 of the stem 2 opens into the bowl 1 below the shoulder 7. At the bottom of the be fas ioned from corn cob, because the virare wellknown and recognize The insert has an external cylin 'cal surface 11, throughout most of its length, so

detachably connected at 4, in any preferred tues of corn cob, as a tobacco that the insert can be rotated readily in the bowl 1. The insert 10 has a ta her 5 in the bowl 1,. Referring to Figure 3, it will be noted that the tapered lower end material,

smokers.

7 red lower end 12 adapted to fit snugly in t e inwardly tapered, threaded portion. 6 of the cham- 12 of the insert 10 is smooth, there being no om threads '11 n it, as the insert comes the manu acturer. When, however, the insert 10 is laced in the bowl 1 and rotated, the thread ed the bowl will cut threads 15- on the smooth surface 14 of the insert, the insert, thus, being held securely in the bowl. The insertlO is turned until the'lower end of the insert has a firm engagement with the shoulder 7, and therefore,-the threads 6 of the bowl will be kept clean and ready to receive a new insert. If the insert 10 hap us to be shrunk a little, it may be crowded dii wn against the shoulder 7, nevertheless, to make a tight fit. Since the threads 6 of the bowl 1 cut the threads 15 in the insert 10, the bowl l-should be made of such material that-it will carry threads of considerable strength, and it is on that account that aluminum is suggested as the proper material to be used in the making of the bowl 1. The opening 16 of the insert 10 may be shaped as desired. It may be cylindrical in its upper portion, and7tapered in its lower portion, as shown at 1 The device forming the subject matter of this application aflords all of the well known advantages of a corn cob pipe, and at the same time affords a pipe which is more sightly in appearance than an ordinary corn cob 1 e. p llaving thus described the invention, what is claimed is:

1. A pipe comprising a bowl provided with a chamber having internal threads, and a removable insert in the bowl, the insert being externally smooth and being of softer material than the bowl, whereby the threads of the bowl will cut coacting threads in the insert and hold the insert in the bowl.

2 emma 2. A ipe a bowl rovided with a chem having I; tapered ower portion which is provided with internal threads, and a removable in the1 b l)1w1, the insert 1' eta oweren,temsert ex e l 'fally s lfiooth and being of softer 1m rial than the bowl, whereby the threads of the bowl will cut coacting threads in the insert and thereby hold the insert in the bowl.

In testimony that I claim the foregoing as my own, I have hereto aflixed my si ature.

' HUGH MALL TT. 

